Land vehicles – Wheeled – Occupant propelled type
Patent
1987-05-12
1989-07-25
Pekar, John A.
Land vehicles
Wheeled
Occupant propelled type
B62K 1916
Patent
active
048506079
ABSTRACT:
A one-piece, ultralight, generally hollow bicycle frame having no internal structural components, and a method of manufacturing such a frame, are disclosed.
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